Sectional boiler.



R. GLOGNBR.

SEGTIONAL BOILER.

APPLICATION FILED MAY 7, 190a.

. 913,489, 7 Patented Feb.23, 1909.

n4: NORRIS PETE" cm, wAsnmamN. n. c.

UNITED STATES ROBERT GLOGNER, OF CHARLOTTENBURG, GERMANY.

SECTIONAL BOILER.

Specification of Letters Patent.

Patented Feb. 23, 1909.

Application filed May 7, 1908. Serial No. 431,514.

To all whom it may concern:

Be it known that 1, ROBERT GLOGNER, engineer, residing at Charlottenburg, in the Province of Brandenburg, Kingdom of Prussia, Germany, have invented certain new and useful Improvements in or Relating to Sectional Boilers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apper tains to make and use the same.

This invention relates to a sectional boiler with a large water chamber which is mainly constituted by single identical elements or links whereby it can be constructed in a very simple manner and easily adapted to local conditions, While at the same time its enlargement and the exchange of single parts or elements are facilitated. The said boiler combines, moreover, the advantages of wa ter tube boilers and of tubular boile has an exceedingly large and favorable heating surface, is easy to clean and moreover, enables superheaters to be arranged in an advantageous manner.

A constructional form of the boiler is shown in the accompanying drawing in Figure l partly in vertical longitudinal section, in Fig. 2 in front elevation. Fig. 3 is a vertical section through the end chambers of the boiler, and Fig. 4 is a section on line AB of Fig. 3.

The boiler consists of a longitudinal upper boiler a with. a short transverse upper boiler b adjoining the same, so that the two together form a T. The transverse upper boiler is,

however, not absolutely necessary, but only in the case when two or more vertical series of elements are used. Under the upper boiler which contains the steam. space, are arranged, in groups superposed links or ele ments connected to the upper boiler by suitable branches or pipes. Such a link or element consists of several horizontal tubes 0 which open with their ends into two chambers cl e which are common to the two pipes and form with them one single piece. The water chambers are generally provided with openings to which are connected intermediate branches h h, the branch i being connected to the upper boiler b and the connect ing branch kto the preliminary heater Z which consists of a transverse pipe of the same width as that of the boiler, connected by means of a vertical pipe m to the upper longitudinal boiler a. The back chamber 6 of the uppermost element or link is provided I with an opening at the bottom only and the front chamber of the lowest element at the top only. Each element is, moreover, pro vided with several fire tubes n, each of which is arranged in one of the water tubes 0, and f passes from the front wall of the front water chamber to the back wall of the back water chamber and is secured to the said walls. Any desired number ol vertical groups of elements could be used, and in the same way the single groups could have any desired number of superposed elements, and each single element could consist of any desired number of tubes 0 arranged side by side with inner fire tubes at, but the construction illustrated with three tubes combined into one element is considered by the inventor as the most practical one as regards simplicity of construction and good working.

The branches h and i are connected to the chambers (Z and e in the manner shown by Figs. 3 and 4. The branches consist of short pipes the ends of which are tapered and fit in the openings f of the chambers. VVithin the chambers rings 0 are arranged consisting of two parts and having holes for screw-bolts 19 going from one ring to the other inside of the tubes lb or i. By this construction the screws, washers or other parts, do not come in contact with the fire.

Combustion gases from a not shown grate come into contact with the outer walls not only of the tubes 0 but of the chambers d and 0. At the same time the combustion gases pass also through the inner fire tubes at in the direction parallel to the outer llues, so that the elements are in contact with equally hot combustion gases both inside and outside. ln-that way, the boiler pre sents an extremely large and favorable heating surface, and owing to the small diameter of its parts, it is possible to work the same with high pressures while even then it contains a sufliciently large quantity of water to enable it to be used even for very irregular steam consumption. The intermediate space between the elements is eminently suitable for arranging super-heater pipes which, if so arranged, do not require any separate space.

What I claim is:

1. In a sectional boiler, the combination, with a series of water-chambers, water-tubes secured to the said chambers, and fire-tubes arranged in the said water-tubes and also secured to the saidchambers of tubular conand fire-tubes arranged in the said Waterheating-branches the end ortions of; which 1 tapering end portions which fit into holes in engage with the said chambers, rings formed the said chambers, rings formed in segments in segments and arranged in the said chamand arranged in the said chambers, and hers, and bolts connecting the said, rings clamping-bolts passing through the said together in pairs and thereby clamping the branches and securing the said rings together said branches to the said chambers. in pairs.

2. In a sectional boiler, the combination, I In testimony whereof I aflix my signawith a series of superposed Water-chambers, ture, in presence of two Witnesses. water-tubes secured to the said chambersi ROBERT GLOGNER.

f Witnesses:

HENRY HASP-ER, 1 WOLDEMAR HAUPT.

tubesand also secured to the said chambers; of intermediate tubular branches having 

